Back to EveryPatent.com
United States Patent | 5,253,999 |
Kosuge | October 19, 1993 |
A rotary molding machine having an arrangement for securely positioning lip and injection molds independently of the length of the vertical stroke; the arrangement does not require a guiding member for each lip mold. A lip mold is mounted on each of a plurality of sectorial plates so as to be vertically removable with the corresponding sectorial plate. Cylinders for opening and closing the molds are provided on vertically movable tie bars, and means provided for vertically moving the cylinders. An injection mold below the lip mold to close with the lip mold when the cylinders are lowered. A driving arrangement for intermittently rotating the sectorial plates so that after each rotation one lip mold is positioned above the injection mold.
Inventors: | Kosuge; Satoru (Komoro, JP) |
Assignee: | Nissei Asb Machine Co., Ltd. (JP) |
Appl. No.: | 828391 |
Filed: | January 30, 1992 |
Jan 31, 1991[JP] | 3-32354 |
Current U.S. Class: | 425/575; 264/538; 425/576 |
Intern'l Class: | B29C 045/06 |
Field of Search: | 425/534,540,541,575,576,522 264/538 |
4321029 | Mar., 1982 | Aoki | 425/523. |
4846661 | Jul., 1989 | Nakamura et al. | 425/534. |
Foreign Patent Documents | |||
0206914 | Dec., 1986 | EP. | |
0228324 | Jul., 1987 | EP. | |
0288581 | Nov., 1988 | EP. | |
0328658 | Aug., 1989 | EP. | |
2501572 | Mar., 1982 | FR. |